Steerable catheter with wire-tensioning mechanism
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United States of America Patent
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Jul 23, 2019
Grant Date -
Feb 1, 2018
app pub date -
Jul 20, 2017
filing date -
Jul 28, 2016
priority date (Note) -
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Abstract
A spool and gear mechanism for tensioning and manipulating the steering/deflection control wires of a steerable catheter device provides for a desired level of tension that will allow operation of the device without too little or too much tension in those wires. In a wire-tensioning mechanism for a steerable catheter, the mechanism includes at least a first and second steering/deflection control wire each attached to the spool by winding around its own detent-engaged rotatable gear in the spool and extending out through a radial wall of the spool to engage into a steerable catheter body. In a multi-spool system, the wire-tensioning/winding gears of each spool preferably are accessible for adjustment via apertures of an adjacent spool.
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